Counter-skiving machine.



' PATENTED OGTJB, 1903.

W; 0. STEWART. COUNTER SKIVING MAGHINE.

APPLICATION PILED OGT. 27, 1900 4 SHEETS-SHEET 1.

. N0 MODEL.

TH: mums warms-co, Pun'raurnm wasnmn'mu. w. c.

No. 740,483. PATBNTED 001. 6, 1903. Y

w. c. STEWART.

' 0011mm SKIVING-MAGHINR APPLICATION FILED OUT. 27, 1900 I 4 SHEETS-SHEET 4.

N0 MODEL.

IEIKN 1 \A/IT asses: rL/E TDR v mwj j UNITED STATES WILLIAM Patented October 6, 1903.

PATENT Orrrca.

O. STEWART, OF LYNN, MASSACHUSETTS, ASSIGNOR TO ALF- AN DER STEWART, JR., OF LYNN, MASSACHUSETTS.

COUNTER-SKIVING MACHINE.

srn'crricn'rroiv forming part of Letters Patent No. 740,483, dated. October 6, 1903.

' Application filed October 27, 190i). Serial No. 34.586. (No model.)

To aZZ whom it; may concern:

Be it known that LWIL LIA M O. STEWART,QE

Lynn, in the county of Essex and Stateof Massachusetts, have invented certain new and useful Improvements in Counter-Skiving Machines, of which the following is a specifi cation.

The main object of the present invention is to provide means for skiving simultaneously both ends of a boot or shoe counter.v The machine of the present invention takes the counter after it has been skived along its top and bottom edges and simultaneously skives both of its ends, thereby saving both time and labor.

The object of the invention is also to improve the construction of machines forskiving an end of a counter. v

Of the accompanying drawings, Figure 1 represents a front elevation, partly broken away, of a counter-skiving machine constructed in accordance with my invention. Fig. 2 represents a plan view thereof.

Fig. 4 represents a detail view of one of the movable plates above the feed-table, together with adjacent parts. Fig. 5 represents a longitudinal section of one of the skiving mechanisms. Fig. 6 represents a section on line 6 6 of Fig. 5. Fig. 7 represents a section on line 7 7 of Fig. 5. Fig. 8 represents a plan view of a counter before being presented to the action of the machine. Fig. 9 represents a plan view of the counter after being skived by the machine. Figs. 10 and 11 represent longitudinal sections of said counters. Fig. 12 respresents a sectionon line 12 12 of Fig. 8. tion on line 13 13 of Fig. 9. Fig. 14 represents a perspective view of one of the matrixrolls and adjacent parts.

The same reference characters indicate the same parts in all the figures.

In the drawings, 1 is the machine-bed, and 2 2 are two frames or bases carrying the respectiveskiving mechanisms, which are duplicates and mounted to slide toward and from each other on guides 3 3 on the bed 1 to accommodate counters of difierent lengths, said bases being fixed in the positions to which they are adjusted by bolts 4 4, Fig. 1.

'bed of the machine.

Fig. 7 3 represents a median transverse section.'

Fig. 13 represents a sec? Each skiving mechanism has two shafts 5 6, geared together, the lower shaft having also a gear 7, meshing with a pinion 8, which has a spline connection with a driving-shaft 9, mounted in fixed bearings. The drivingshaft 9 on ope end of the machine has beltpulleys 10 11 to connect-it with a source of power, and the other driving-shaft is driven from said belt-shaft by means of gearing 12 13 and a counter-shaft 14,'rnnning under the The spline connection of the driving-shafts 9 with the gears on the bases 2 .mits the bases to be adjusted. Eacbzfi ii g mechanism has a fixed skivingknife 15, an under roughened or fluted feedroll 16, attached to the shaft 5, and an upper roll 17, which acts as a presser in conjunction with the feed-roll and is also formed with a matrix, as hereinafter explained.

18 is a feed table interposed between and in advance of the skiving mechanisms upon which the counters are placed to be fed to the skiving mechanisms. The two skiving mechanisms are alined transversely with respect to and on opposite sides of the path of the counter, and the counters in being introduced to the ski'ving mechanisms are placed on the feed-table 18 in a position parallel to the shafts 56, as indicated at 19 in Fig. 2, and are fed along said table into said skivingmechanisms, whose rolls simultaneously engage the two ends of the counter and feed the same against the skiving-knives 15.

20 is a feeder pivoted upon a rock-shaft 21 and having two arms which operate through slots 22in the table 18. movement is im parted to said feeder by means of a link 23, connected to a wrist-pin 24,

mounted upon a wheel 25, which is connect-.

ed by a belt 26 with a pulley 27 on the counter-shaft 14. The object of the feeder 20 is to take the counters from behind as they are placed one by one upon the feed-table by the operator and introduce them to the skiving mechanisms. The stroke of the feeder begins nearthe outer end of the table 18 and'ends substantially at the skiving mechanisms, so that the counter is positively propelled until it reaches said mechanisms. The propelling power of the feed-rollslli in the two skiving mechanisms causes the counter to pass in con- A reciprocatory.

tact with the edges of the skiving-kniv'es 15 and to be skived thereby. After the counter has been skived it is ejected from the machine by an oscillatory ejector-arm 28, mounted upon apivot 29 and having a path of movement which carries its upperend from astartin'g position just below the level of the table 18 and slightly in advance of the knives 15 to an ejecting position. (Shown in Fig. 3.) The ejector-arm is extended below its pivot 29, and its lower end is connected by a link with the feeder 20 at a point between the upper end of the latter and its pivot. This connection causes the feeder and ejector to approach and recede from each other in their movements and produces a coaction between the two, the ejector 28 taking from behind the counter which has been delivered to the skiving mechanisms by the feeder 20, assisting it through said mechanisms, and finally ejecting it. As the ejector moves forward to eject the counter the feeder moves backward to be in position for another counter.

In Figs. 8 to 13, inclusive, I have shown the counter as it appears before and after the action of the machine. Before coming to the machine the counter 19 is skived along its upper and lower edges, as shown at 21 22, and said edges are thereby made thin, while the counter has its maximum thickness in its middle part from one end to the other. In passing through the machine the ends are skived, as shown at 33 33. In the machine the skiving-knife 15 of each mechanism is substantially horizontal, and the feed-roll 16 is permitted to yield vertically against the tension of a spring 34. The shaft of the upper roll 17 is mounted in fixed bearings. The under shaft 5 has a pivot in its outer hearing 35 and a universal joint at 36, whereby the vertical yielding of the roll is permitted. This construction is well known in single skiving-machines. In order to properly skive the endpf the counter, the upper roll 17 is formed with a matrix which is the inverse of the profile of the skived counter e ndthat is, the periphery of the roll is formed with high portions where it is desired to press the counter downwardly against the skiving-knife and low portions where it is desired to preserve the thickness of the counter. At its outer or remote end the roll 17 is substantially cylindrical, as indicated in Fig. 7, for at this point the counter is to be skived across from its upper edge to its lower edge. At the inner end of the roll 17 its diameter is reduced in that portion of the circumference of the roll which is to come in contact with the counter in the vicinity of the median line of the latter, for at this point (represented at 37 37 in Fig. 9) it is not desired to skive the counter, and the latter should, therefore, not be pressed down against the skivingknife. From the reduced or low portion at its inner end to the high portion at its outer end the diameter of the roll increases uniformly to correspond to the desired decrease in the tact with the top and bottom edges of the counter which have been already skived, as indicated at 31 32 in Fig. 8.

The matrix-roll 17 must be timed so as to.

have the proper relation to the counter, and this I accomplish by mounting it loosely or rotati-vely upon its shaft 6 and holding it stationary when no counter is passing by means of a pivoted latch 39,'pressed downwardly by a spring 40 of adjustable tension into engagement with a pin or lug 41 on the roll 17, Fig. 3. When no counter is passing, the friction of the shaft on the roll is sufficient to rotate the roll until the pin 41 comes in cont-act with latch 39, when the rotation of the roll is arrested and the roll is held in the proper position to receive the next counter. As soon as the counter passes into the space between the matrix-roll 17 and the feed-roll 16 the propelling power of the latter is exerted on the counter, and the counter in turn rotates the roll 17 and automatically disengages the latch 39 from the pin 41, the said latch and pin being engaged with only sufficient security'to hold the matrix-roll against the rotative friction exerted on it by its shaft 6. For counters of different widths the matrix-rolls 17 may be changed.

Counters supposed to be of a certain size will often vary to some extent in their length, and to insure the proper action of the matrixrolls 17 on counters so varying I mount said matrix-rolls so as to slide longitudinally on their shafts 6 and provide for displacing them in opposite directions by the traverse or passage of the counter.

42 42 are two plates mounted above the table 18 and forming with said table a troughlike feeding-receptacle, through which the counters are introduced to the skiving mechanisms. Each of said plates is pivotally connected by a link 43 with a fixed bar or support '44, arranged above the table, and the plates are yieldingly projected toward each other by means of springs 45 45, interposed between the said plates and supports and surrounding guide-rods 46, which are attached to the plates and project through holes 47 in the supports, Fig. 4. The outer ends of the rods are provided with split pins 48 to limit the inward movement of the plates. The inner ends of the plates 42 are connected with the matrix-rolls 17 by means of disks or wheels 49, which engage circumferential grooves 50, formed in the outer ends of the matrix-wheels, and are mounted upon threaded stems 51 on the plates, whereby said wheels 49 may be adjusted to vary the relation of the plates and matrix-rolls. The plates at their outer ends are flared upwardly and outwardly IIO counter is inserted between the outer ends of the plates 42 when the feeder is at the beginnin g of its operating stroke. The feeder propels the counter along the feed-table, and as the counter approaches the skiving mechanisms it separates the inner ends of the plates 4 and moves the matrix-rolls 17 to just the required distance apart in order to secure their automatic ejecting-abutment operating between and beyond the skiving mechanisms and adapted to engage the rear edge of the counter and positively advance the latter through the skiving mechanisms.

2. In a machine for skiving simultaneously both ends of a counter, two skiving mechair isms alined transversely with respect to the path of the counter, and each having a skiving-knife, and an ejector movable from a starting position below and precedent to said knives.

3. In a machine for skiving simultaneously both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter, and each having a skiving-knife, and an oscillatory ejector-arm op erating in alinement with the space between said mechanisms, its outer end having a path of movement which crosses the path of the counter in a locality precedent to said knives.

4. In a skiving-machine, a skiving mechanism, and a feeder and an ejector mounted to approach and recede from each other in their movements, said ejector being so ar-' ranged as to'operate on the counter before the latter leaves the skiving mechanism.

5. In a skiving-machinma skiving mechanism, a feeder having an operating stroke which ends substantially at said mechanism,

and a reciprocating ejector having an operating stroke which begins substantially at said mechanism.

6. In a skiving-inachine, a skiving mech-' anism pivoted feeder and ejector arms, means to oscillate one of said arms, and a linkconnected with one of said arms at a point between its operating end and its pivot, and to the other arm at a point on the opposite side of its pivot from its operating end, whereby the ends of said arms are caused to approach and recede from each other in their movements.

7. A counter-skiving machine comprising two opposed skiving mechanisms arranged to simultaneously skive the two ends of the same counter and each comprising a skivingknife and a cooperating matrix-roll having the inverse formation of the side and'end bevels of the counter, and provisions for relative adjustment of said rolls to act on counters of diEerent lengths.

8. A counter-skiving mechanism comprising a skiving-knife and a matrix displaceable longitudinally of the working edge of said knife, and means operated by the traverse or passage of the counter, for so displacing said matrix. r

9. In a machine for skiving simultaneously both ends of a counter, a skiving mechanism, and a second skiving mechanism alined therewith transversely with respect to the path of said counter and comprising a skiving-knife and a matrix displaceable transversely with respect to said path, and means operated by the traverse or passage of the counter for so displacing. said matrix.

10. In a machine forskiving simultaneously both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter, and each comprising a skiving knife and a matrix displaceable transversely with respect to said path, and means operated by the traverse or passage of the counter for so displacing said matrices in opposite directions.

11. A counter-skiving mechanism comprising a skiving-knife, a feed-roll, and an opposed roll having a matrix formation and displaceable longitudinally of its axis of rotation, and means operated by the traverse or passage of the counter for so displacing said matriX-roll.

. 12. In a machine for skivingsimultaneously both ends of a counter, two-skiving mechanisms alined transversely with respect to the path of the counter, and each comprising a skiving-knife, afeed-roll, and an opposed roll having a matrix formation and displaceable longitudinally of its axis of rotation, and means operated by the passage or traverse of the counter for so displacing said matrixrolls in opposite directions.

13. In a counter-skiving machine, a skiving mechanism, and a feeding-receptacle located in advance of said mechanism and having a movable side controlling the operation on the counter of said mechanism.

3 14:. Inamachinefor-skivingsimultaneously both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter, and a trough-like feedingreceptacle located in advance of said mechanisms and having movable sides-con- ICC trolling the operation on the counter of the p respective mechanisms.-

both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter, and having matrices movable toward and away from each other transversely of the path of the counter, and a trough-like feeding-receptacle having movable sides controlling such movement of said matrices.

16. Ina machine forskiving simultaneously both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter, and having matrices movable toward and away from each other transversely of the path of the counter, and a trough-like feeding-receptacle having sides movable in like manner and connected with said matrices, the displacement of said sides in opposite directions serving to displace the matrices in opposite directions.

17. In amachine forskiving simultaneously both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter, and having matrices movable toward and away from each other, and a trough-like feeding-receptacle having movable sides yieldingly projected toward each other and controlling such movement of said matrices.

18. In a machine for skiving simultaneously both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter and having matrices movable toward and away from each other, and a trough-like feeding-receptacle having a bottom or feed table, and sides formed by movable plates mounted above said table and controlling said matrices.

l9. Inamachine for skivingsimultaneously both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter, and having matrices movable toward and away from each other, a feed-table, two plates movably mounted above said table and adapted to receive the counter crosswise between the m,means yieldingly projecting said plates toward each other,

- and connections between said plates and the matrices,whereby the movement of the plates in opposite directions moves the matrices in like manner.

20. In a counter-skiving machine, a feedtable, a movable plate mounted above said table and forming an abutment displaceable by the counter, and a skiving mechanism located at the end of said table and having a counter-engaging member controlled by said plate. h

21. In a counter-skiving machine, a feedtable, a movable plate mounted above said table and forming an abutment displaceable by the counter, and a skiving mechanism located at the end of said table and having a movable matrix controlled by said plate.

22. In a counter-skiving machine, a feedtable, a fixed support above said table, a movable plate mounted above said support, a link connecting said plate with the support, a spring interposed between the plate and support, and a skiving mechanism mounted at the end of said table and having a movable matrix controlled by said plate.

23. In a counter-skiving machine, a skiving-knife, a feed-roll, a shaft parallel thereto, a roll mounted to slide longitudinally of said shaft and having a matrix formation, and means operated by the traverse or passage of the counter for so moving the matrix-roll.

24. In a counter-skiving machine, a skiving-knife, a feed-roll, a shaft parallel thereto, a roll mounted to slide longitudinally of said shaft and having a matrix formation, a-

plate located in advance of the rolls and displaceable in a direction parallel thereto by the traverse or passage of the counter, and a connection between said plate and matrix-roll whereby the plate moves the roll.

25. In a counter-skiving machine, a skiving-knife, a feed-roll, a shaft parallel thereto, a roll mounted to slide longitudinally of said shaft and having a matrix formation, a plate located in advance of the rolls and displaceable in a direction parallel thereto by the traverse or passage of the counter, a connection between said plate and matrix-roll whereby the plate moves the roll, and means for adjusting said connection to vary the relation of the two.

26. In a machine for skiving simultaneously both ends of a counter, two skiving mechanisms alined transversely with respect to the path of the counter and having matrices movable toward and away from each other, a feedtable, and two plates mounted above said table and movable toward and away from each other to operate the matrices, said plates flaring upwardly and outwardly to facilitate the introduction'of the counters and having overhanging flanges on their ends nearest the skiving mechanisms.

27. In a counter-skiving machine, a skiV- ing-knife, means to force the counter against said knife, a matrix-roll rotatable by the passage of the counter against it, and means normally restraining the rotation of said roll.

28. In a counter-skiving machine, a skiving-knife, means to force the counter against said knife, ashaft, a matrix-roll loosely mount- .ed on said shaft, and a latch normally restraining the rotation of said roll and'disengageable so as to liberate the roll by the passage of the counter against the roll.

29. In a counter-skiving machine, a skiving-knife, means to force the counter against said knife, a normally non-rotated matrix-roll, and means released by the traverse or passage of the counter to normally arrest the rotation of said roll. 4

30. In a counter-skiving machine, a skiving-knife, means to force the counter against said knife, a shaft, a matrix-roll movable rotatively and longitudinally thereon, means normally restraining the rotation of said roll and IIO actuated to liberate the'roll by the traverse 'roll by the passage of the counter between the 10 or passage of the counter, and means actn- I rollsunder the influence of the feed-roll.

ated by the traverse or passage of the coun- In testimony whereof I have affixed my sigter for displacing the roll longitudinally on nature in presence of two witnesses. v 5 WILLIAM (J. STEWART.

31. In a counter-skiving machine, a skivlug-knife, a feed-roll, an opposed matrix-roll, \Vitnesses: and means normally restraining the rotation ALEXANDER STEWART, Jr., of said matrix-roll and actuated to liberate the EDITH L. COPELAND. 

